Idle is much smoother than with the factory TB. New Base 3.0 Tune CL - E85 Tune, 23 degrees.hpt The event occurs at the end of the log and is obvious. I'm almost wondering if it's not a hidden emissions test attempting to run and upsetting the car.Īttached is the log of this occurring, 3.0 VCM Scanner setup, as well as the tune. I'm at my wits end with this, as it only every once in a while will act up, but when it does it's usually at a busy light, and I have to key cycle the car with a 10 second wait to get it to act right again. Forcing the car into Open Loop whether VE or MAF only produces a 1 to 2% lambda error. The car is mostly MAF tuned, but runs Dynamic under 2000rpm to keep low-speed operation smooth. Stock throttle body has not been ported or altered in any way. The car is M62 supercharged, running stock TB, as well as ID1000's and a Boost Referenced Fuel System. Spraying MAF cleaner around all pertinent places has produced no vacuum leak All gaskets behind the MAF have been recently replaced ( TB, SC, Intake gasket ) Throttle body and MAF have been cleaned I'll also get a P0507 code when this occurs. However, coming to a stop at a light or an extended idle ( more than 30 seconds ) will cause it to go off the charts lean. The car runs great going down the road, WOT, whatever. Running into an issue where my 2004 Ion Redline will randomly go super-lean at idle. Been doing my own tuning for about a year now. An acoustic engine cover was added to reduce engine noise.Hi all, new poster here. The ecu was switched from a speed density system to a mass air system. The front fascia of the sedan was upgraded as well with a much larger grill opening. 2005 also saw the introduction of "quiet steel" multilaminate technology for sound reduction. In mid 2005 the seats in the base ION-1 model were upgraded with new fabrics and a height adjustment feature. While less technologically advanced than the previous offerings, it is a long term proven design.Īlso in 2005 the 'hockey-puck' style steering wheel was discontinued and the design used in the 2004 redline model became standard on all models. The GM 4T45-E replaced both transmissions and is the only automatic option for 2005-on. Reliability being the main issue for the VTi and the Aisin had a common documented problem called shift-flare which also was somewhat common in the other manufacturers that used Aisin transmissions (i.e. In 2005 the Aisin 5-speed automatic used in the sedans from 2003-04 and in the quad-coupes from mid 2004 on, along with the VTi trans used in the quad-coupes from 2003 to mid-2004 were both discontinued for various issues. Under the hood, the long-rumored 170 hp 2.4 L I4 engine with variable valve timing became available for the ION3. In 2006, the ION received exterior facelift to give it more of a family resemblance to the 2007 Saturn Aura and Saturn Sky roadster. In 2004, Saturn introduced the high-performance Redline variant of the ION, featuring a supercharged engine. The 20 IONs were available with the VTi continuously variable transmission. ![]() ![]() The ION is available in sedan and coupe forms the coupe is called a "quad coupe" due to the two smaller rear-opening "suicide doors" behind the front doors.Ī Getrag F23 5-speed manual or an Aisin AF33 5-speed automatic transmission are available. The ION's instrument panel is mounted on the top center of the dashboard, rather than behind the steering wheel. The 2003 ION came standard with a 140 hp (104 kW) DOHC Ecotec I4 engine. The ION replaced the Saturn S-series in 2003. The Saturn ION is a compact car sold by General Motors' Saturn marque.
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